Locking-handle cock



Mar. 6,1923.

C. C. FRMER LOCKING HANDLE COCK Filed Oct. l5, 1919 ATTORNEY i INVENToRde @Fc-armer Patented Mar. 6, 1923.

STATES ian, rarer eric:

W'ESTNG- HOUSEAIR BRAKE COMPANY, OF VILMERDING, PENNSYLVANIA, A CORPORA-TION OF PENNSYLVANIA.

v LOCKING-HANDLE COCK.

Application filed October 15, 1919.

To all 'whom t may con cem Be itknown that l, @Lynn C. Fenner, a;citizen of the United States, residing `at littsburgh, in the countyof'Allegheny and State of Pennsylvania, have invented ne7 and usefulImprovements in Locking-Handle Cocks, of which the following is aspecification.

This invention relates to cocks, and more particularly to an angle cockas employed on railway cars for controlling communica tion through thebrake pipe or other fluid pressure train pipe.

lt has sometimes happened that an angle cock in the train brake pipe hasbeen closed y an unauthorized person or has been negligently closed, sothat the engineer loses control or' the brakes ot the train, especiallyif an angle cock be closed near the head end of the train.

Serious accidents are then very liable to happen, as the engineer cannotapply the brakes to stop the train in case of necessity.

The principal object of my invention is to obviate the above difficultyby providing` a cock which can bel locked in the open and closedpositions of the cock.

In the accompanying drawing; Fig. 1 is an elevation of an angle cockdevice embodying my invention; Fig. 2 a section of the locking handleportion of the cock on the line 2*2 of Fig. 3; Fig. 3 a section on theline 33 of Fig. 2; Fig. 4 a section similar to Fig. 2, showing thehandle in its raised position; and Fig. 5 an end View of the lockingmember.

As shown in the drawing, the angle cock device may comprise the usualcock body l and a looking handle 2 constructed similarly to the lockinghandle disclosed in the prior Reissue Patent No. 12,5711 of Inches tHosker, dated Dec. 11, 1906.

The handle 2 is pivoted to a member 3 which is secured to the cock keyand is provided With a lug 4 adapted to engage stops 5 and 6 in the-cock body 1 when the key is turned to its respective open and closedpositions.

The handle is also provided with lugs 7 and 8. the lug` 7 being adaptedto engage the stop t when the handle is in its open posi tion, and thelng' S the stop 5, when the hann die is in its closed position.

According to my invention` a locking memsriai no. 330,787.

ber 9 is provided for preventing movement ot the handle 2. The keymember 3 is pro vided With an upwardly extending lug 10', havingl aconcavity 11 on its edge and the member 9 is provided with a cylindricalsection 12 adapted to engage in the concavity 1l for locking the partsagainst movement, the opposite side ot' "the section away to providca`flat tace 13.

T he locking,r member 9 is mounted in an enclosing casing` 11i, forming'part of the handle 2 and at one end is provided With a cavity 15 forreceiving;l a key 19. An escutcheon 1G is seciired in the casing'1+iadjacent to the end of the locking; member 9.

An eccentric Weight l? is secured to the member' 9 and is so positionedas to tend to maintain the locking member in its locked position. A

ln order to turn the handle sary to first the lng 7 or stop 5 or 6.

lilith the locking' member 9 in the position shown in Fig. 2, thesection 12 engages vvithin the concavity 11 and thus prevents the handle2 from being lifted, so that the handie cannot be turned from either itsopen or its closed position.

If it is desired to operate the cock, a key 19, corresponding with thecontour of the slot in the escntcheon, must be inserted and the member 9turned, so that the flat tace 13 is adjacent to the concavity 1.1.

Then the handle 2 may be lifted and turned to the desired position.

When the handle has been lifted, the tlat face 13 will be adjacent to aface 18 on the lng 10, so that while in a lifted position, the member 9cannot be rotated, nor can the key 19 be removed.

The handle 2 must therefore be moved toits full open or closed positionand then allowed to drop to its locked position, before the member 9 canbe rotated and then the key 1,9 must be turned so as to move the member9 to its locked position, so that the key Will aline with the slot inthe escutcheon and thus permit its removal.

The action ol.l the weight 17 snch that the member 9 `will be maintainedin its locked position, regardless oli' jarring when the train inmotion.

The above described construction prevents 2, it is necesliit the same,so as to disengage 8, as thecase may be, trom the being cnt the movementof the angle cock handle eX- cept by a person provided with the properkey, and it is intended that the trainman in charge ot the train shallkeep possession of the keyv and held responsible for the same.

IIavinp,` now described my invention, what I claim as ne\v, and desireto secure by Letters Patent, is

1.- The combination with a cock device comprising a valve body havingstops and a vertically movable handle having a projection ttor engagingone of the stops, of a member mounted on the handle for locking saidhandle against vertical movement from normal position and rotatable to aposition for releasing the handle and means for prevent ing rotation ofsaid member from its release position in the raised position of thehandle.

2. In a cock device, the combination With a handle for operating thecook key and pivoted for vertical movement from anormal position, ot' arotatable member' carried by the handle and adapted to lock the handleagainst vertical movement, a key for rotatingsaid member, and means :torpreventing rotation of said member and the turning of the key when thehandle is in its raised position.

3. In a cock device, the combination With a member secured to the cool;key and a vertically movable handle pivoted to said mem ber foroperating the key, of a rotatable locking' device carried by the handletor engaging said member' toprevent vertical move'- ment ot lsaid handlesaid member having means for 'preventing rotation of the locking devicewhen the handle is moved vertically.

In testimony whereof I have hereunto set my hand.

' CLYDE C. FARMER.

